Armañón Natural Park, Nature reserve in Guriezo, Spain.
Armañón Natural Park is a protected area in northern Spain featuring steep limestone cliffs, thick forests covering most of the terrain, and a complex network of caves beneath the ground. Several of these caverns are accessible, and the park includes river valleys that cut through the landscape.
The protected area developed from growing interest in the geological formations after a major cave was discovered in the 1950s during mining work. Mining operations in the region were later halted to preserve the natural site.
The park holds ancient burial mounds and stone tombs from prehistoric times, showing how people lived in this region thousands of years ago. These structures are scattered across the landscape and give visitors a sense of the area's long human presence.
The visitor center provides information about hiking trails and the best times to explore different areas. Access points are located in the villages of Carranza and Trucios, so it helps to decide which entrance suits your route before arriving.
One of Europe's largest cave systems lies hidden underground in the park and hosts a significant colony of rare bat species. This underground world remains little known to most visitors despite being an extraordinary natural habitat.
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